Spring 'Freeze' Probabilities (Jan 1 - Jul 31)


DRAIN stat, (352406)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/28 04/24 05/03 05/09 05/13 05/16 05/22 05/27 05/31 06/16 07/13
32.5 02/09 03/28 04/05 04/12 04/17 04/21 04/26 05/01 05/07 05/20 06/10
28.5 **/** 01/31 02/09 02/20 03/01 03/07 03/15 03/22 04/03 04/18 05/06
24.5 **/** **/** **/** 01/16 01/26 02/01 02/08 02/17 02/27 03/05 04/14
20.5 **/** **/** **/** **/** **/** 01/05 01/18 01/26 02/04 02/23 03/20
Graphic Output
 Earliest - Earliest date when a minimum temperature below the threshold occurred.
            **/** means there has been a year when the minimum temperature didn't
                  go below the threshold temperature during the Jan. 1 to July 31 
                  period or that there was insufficient data to determine a 
                  date.

xx% - Percent probability that a minimum temperature below the threshold will occur on or after the given date. **/** means non-occurrence of the threshold or insufficient data to determine a threshold.
Latest - Latest date when a minimum temperature below the threshold occurred. **/** means there has never been a year when the minimum temperature went below the threshold temperature during the Jan. 1 to July 31 period or insufficient data to determine a date. 07/30 means the minimum temperature can go below the threshold temperature any day during the Jan. 1 to July 31 period.

Western Regional Climate Center, wrcc@dri.edu